4. No owners have the same pet, smoke the same
brand of cigar, or drink the same beverage.

Hints:

1. The Brit lives in a red house.2. The Swede keeps dogs as pets.3. The Dane drinks tea.4. The green house is on the left of the white
house (next to it).5. The green
house owner drinks coffee.6. The person who smokes Pall Mall rears birds.7. The owner of the yellow house smokes
Dunhill.8. The man
living in the house right in the center drinks milk.9. The Norwegian lives in the first house.10. The man who smokes blend lives next to the
one who keeps cats.11. The man who keeps horses lives next to the
man who smokes Dunhill.12. The owner who smokes Blue Master drinks
beer.13. The German smokes Prince.14. The Norwegian lives next to the blue house.15. The man who smokes blend has a neighbor who
drinks water.